RV owners, this Ultra-Fab slideout support system is exactly what you need to stop that annoying rocking motion when people move around inside your rig! Extending from 21 to 37 inches, these supports fit most standard RV slide-outs and provide that extra stability that makes your RV feel more like a solid home. Sold in pairs, you get complete coverage for each slideout, reducing bounce and sway when walking or moving furniture inside. The design fits extension tubes up to 4.5 inches wide, making them compatible with most RV models and slideout mechanisms. Installation is straightforward - just position them under your extended slideouts to create additional support points. The difference in stability is immediately noticeable - no more that unsettling movement that can make RV living feel temporary. Perfect for families with active kids, pets, or anyone who wants a more solid feel in their home on wheels. The construction feels durable and reliable - these aren't flimsy accessories but proper support components. Whether you're parked for the weekend or living full-time in your RV, having stable slideouts makes the space much more comfortable and functional. From meal preparation to sleeping to entertaining guests, these supports eliminate that distracting movement that can make RV life feel less secure. The value is excellent for the peace of mind and comfort they provide. Definitely a must-have accessory for any serious RVer who wants to maximize comfort and minimize the mobile home feeling when parked and set up!